CN103827589B - Dehumidification system - Google Patents

Dehumidification system Download PDF

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Publication number
CN103827589B
CN103827589B CN201280045514.8A CN201280045514A CN103827589B CN 103827589 B CN103827589 B CN 103827589B CN 201280045514 A CN201280045514 A CN 201280045514A CN 103827589 B CN103827589 B CN 103827589B
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CN
China
Prior art keywords
mentioned
air
heat exchanger
dehumidifying element
adsorption
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Expired - Fee Related
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CN201280045514.8A
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Chinese (zh)
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CN103827589A (en
Inventor
松井伸树
大久保英作
夏目敏幸
冈本康令
桑名孝
桑名孝一
草部隆弘
岩田哲郎
内田秀树
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Daikin Industries Ltd
Daikin Applied Systems Co Ltd
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Daikin Industries Ltd
Daikin Applied Systems Co Ltd
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Publication of CN103827589A publication Critical patent/CN103827589A/en
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Expired - Fee Related legal-status Critical Current
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
    • F24F3/12—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
    • F24F3/14—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification
    • F24F3/1411—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification by absorbing or adsorbing water, e.g. using an hygroscopic desiccant
    • F24F3/1423—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification by absorbing or adsorbing water, e.g. using an hygroscopic desiccant with a moving bed of solid desiccants, e.g. a rotary wheel supporting solid desiccants
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
    • F24F3/12—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
    • F24F3/14—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification
    • F24F3/1405—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification in which the humidity of the air is exclusively affected by contact with the evaporator of a closed-circuit cooling system or heat pump circuit
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
    • F24F3/12—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
    • F24F3/14—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification
    • F24F3/1411—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification by absorbing or adsorbing water, e.g. using an hygroscopic desiccant
    • F24F3/1429—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification by absorbing or adsorbing water, e.g. using an hygroscopic desiccant alternatively operating a heat exchanger in an absorbing/adsorbing mode and a heat exchanger in a regeneration mode
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
    • F24F5/0007—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater cooling apparatus specially adapted for use in air-conditioning
    • F24F5/001—Compression cycle type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
    • F24F5/0007—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater cooling apparatus specially adapted for use in air-conditioning
    • F24F5/0014—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater cooling apparatus specially adapted for use in air-conditioning using absorption or desorption
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2203/00—Devices or apparatus used for air treatment
    • F24F2203/02—System or Device comprising a heat pump as a subsystem, e.g. combined with humidification/dehumidification, heating, natural energy or with hybrid system
    • F24F2203/021—Compression cycle
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2203/00—Devices or apparatus used for air treatment
    • F24F2203/02—System or Device comprising a heat pump as a subsystem, e.g. combined with humidification/dehumidification, heating, natural energy or with hybrid system
    • F24F2203/026—Absorption - desorption cycle
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2203/00—Devices or apparatus used for air treatment
    • F24F2203/10—Rotary wheel
    • F24F2203/1016—Rotary wheel combined with another type of cooling principle, e.g. compression cycle
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2203/00—Devices or apparatus used for air treatment
    • F24F2203/10—Rotary wheel
    • F24F2203/1032—Desiccant wheel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2203/00—Devices or apparatus used for air treatment
    • F24F2203/10—Rotary wheel
    • F24F2203/108—Rotary wheel comprising rotor parts shaped in sector form

Abstract

The second Dehumidifying element (20) being used two adsorption heat exchangers (22,24) by first Dehumidifying element (60) with outdoor air cooling heat exchanger (61), switching air flue and the 3rd Dehumidifying element (30) with adsorber rotor (31) constitute system, by by the low temperature after the second Dehumidifying element (20) cooling and dehumidifying, the air of low humidity is supplied in the 3rd Dehumidifying element (30), thus reducing the renewable sources of energy of the 3rd Dehumidifying element (30) so that dehumidification system can energy-saving and cost degradation.

Description

Dehumidification system
Technical field
The present invention relates to a kind of dehumidification system that air after dehumidifying is supplied to indoor.
Background technology
Up to now, the dehumidification system that the air after dehumidifying is supplied to indoor is the most known.Public affairs in patent documentation 1,2 Have this kind of dehumidification system.
The structure that on air flue, adsorber rotor is configured to thtee-stage shiplock is being had described in patent documentation 1,2.Air Path is by supplying path and exhaust channel is constituted, and the outdoor air after this supply path will utilize adsorber rotor to process is supplied to room In, this exhaust channel is by past for room air outdoor discharge.Adsorber rotor is configured to: across being arranged in supply path and exhaust channel On, it is possible to pivot about with the rotary shaft between two paths.
The moisture of adsorber rotor on the one hand absorption air of flowing in supply path and dehumidify, on the other hand toward In exhaust channel, the air of flowing discharges moisture and regenerates.In order to air is heated the regeneration for adsorber rotor, in aerofluxus Path is provided with the heater of air heating.When adsorber rotor being adsorbed with the water adsorption amount of part of moisture and increasing, After adsorber rotor rotates and makes this part migration exhaust channel, and this part is discharged moisture at exhaust channel and regenerated, again For adsorbing side.According to said structure, by continuously the low humidity air of flowing in the air flue of absorption side being supplied to Indoor, thus to indoor dehumidification, indoor air is then to be heated to make after adsorber rotor regeneration by toward outdoor discharge.
Outdoor air passes through adsorber rotor three times, is supplied to the air of indoor thus becomes the air of low dew point, such sky Gas such as can use as the air (sky that dew point is about-50 DEG C being supplied to manufacture the dry dust free room of lithium ion battery Gas).In this kind of system, also through frequently with the structure that adsorber rotor is configured to two-stage.
Patent documentation 1: Japanese Patent No. 3762138
Patent documentation 2: Japanese Laid-Open Patent Publication Laid-Open 2011-64439 publication
Summary of the invention
-invention to solve the technical problem that-
But, in using the system having multiple adsorber rotor, it is necessary to each adsorber rotor is arranged regeneration use and adds Hot device makes each adsorber rotor be configured to the regeneration unit that dehumidifies, and adsorber rotor itself is i.e. the parts of high cost, and owing to adding The regeneration temperature that hot device makes adsorber rotor regenerate is higher, and therefore the operating cost required for heater generation heat also increases.This Outward, in the system using adsorber rotor in a multistage manner, although by under the humidity of the dehumidifying side air after adsorber rotor Fall, but the temperature of air can be because air be by heat of adsorption during adsorber rotor and because the regeneration of heater is heated Rise.Therefore, it is necessary to make the air cooling of dehumidifying side in the porch of adsorber rotor, thus need the energy for this cooling.
Particularly in the production process of lithium ion battery, the energy usage amount of air conditioning system (dehumidification system) account for about 50%, therefore seek the energy-saving of this system, the cost degradation for lithium ion battery is very helpful.But, it practice, be used for The heat making adsorber rotor regenerate is high, and therefore the cost degradation of dehumidification system is very difficult.
The present invention completes in view of the above problems, its object is to enable dehumidification system energy-saving and low cost Change.
-in order to solve the technical scheme of technical problem-
The invention of first aspect is premised on dehumidification system, and this dehumidification system possesses: air flue 40,50, this air Path 40,50 has the aerofluxus that the air being supplied to supply path 40 that the air of interior space S passes through and be discharged into outdoor passes through and leads to Road 50；With Dehumidifying element 60,20,30, this Dehumidifying element 60,20,30 is arranged on this air flue 40,50, above-mentioned dehumidifying list Unit 60,20,30 from the first Dehumidifying element 60 configured successively toward interior space S from the entrance side of the air being supplied to indoor, the Two Dehumidifying elements 20 and the 3rd Dehumidifying element 30 are constituted.
Further, above-mentioned first Dehumidifying element 60 possesses the outdoor air cooling heat friendship of the cooling-dehumidifying air by being supplied to indoor Parallel operation 61, above-mentioned second Dehumidifying element 20 is configured to: possess two heats of adsorption that can alternatively switch to absorption side with regeneration side Exchanger 22,24, and by the air after dehumidifying at the first Dehumidifying element 60 at the adsorption heat exchanger 22,24 of absorption side Further dehumidifying, above-mentioned 3rd Dehumidifying element 30 is configured to: possess that a part is configured to adsorption section 32 and other parts are configured to The adsorber rotor 31 of reproducing unit 34, and at adsorption section 32, the air after dehumidifying at the second Dehumidifying element 20 is removed further Wet.
In the invention of this first aspect, first cooled down heat exchanger 61 by room by the outdoor air of the first Dehumidifying element 60 Outer air etc. are supplied to the cooling-dehumidifying air of indoor.Be cooled at outdoor air cooling heat exchanger 61 this air after dehumidifying By the second Dehumidifying element 20, and moisture is become the adsorbent of the adsorption heat exchanger adsorbing side.In air When moisture is adsorbed at this adsorption heat exchanger 22,24, produced heat of adsorption is adsorbed heat exchanger 22,24 absorption, therefore The temperature rising of air is inhibited.Further, two adsorption heat exchangers 22,24 are alternatively switched to adsorb side and regeneration Side, is supplied to the air of interior space S all the time by adsorbing the adsorption heat exchanger of side.By adsorption heat exchanger 22,24 thus The rising of temperature is inhibited and humidity reduce after air by the adsorber rotor 31 of the 3rd Dehumidifying element 30.At adsorber rotor At 31, the moisture in air is adsorbed by adsorbent further.Then, the low dew point air having passed through adsorber rotor 31 is supplied to indoor Space S.
The invention of second aspect is such that in the invention of first aspect, in addition to adsorber rotor 31, and the above-mentioned 3rd Dehumidifying element 30 is also equipped with being arranged in the air heater 65 of the entrance side of the regeneration air being supplied to this adsorber rotor 31.
In the invention of this second aspect, by supplying the air after being heated by air heater 65 to adsorber rotor 31, Thus adsorber rotor 31 regenerates.This air is the air after cooling down at adsorption heat exchanger 22,24, therefore adsorber rotor The temperature rising of 31 is inhibited, it is possible to regenerate at low temperature.
The invention of the third aspect is such that in the invention of second aspect, above-mentioned air heater 65 be by be located at into The regenerative heat exchanger 65 that the refrigerant loop 70a of row kind of refrigeration cycle, condenser on 120 are constituted.
In the invention of the third aspect, by supplying the air after being heated by regenerative heat exchanger 65 to adsorber rotor 31, Thus adsorber rotor 31 regenerates.This air is the air after cooling down at adsorption heat exchanger 22,24, therefore adsorber rotor The temperature rising of 31 is inhibited, it is possible to regenerate at low temperature.
The invention of fourth aspect is such that in the invention of the third aspect, above-mentioned refrigerant loop 70a, 120 is above State regenerative heat exchanger 65 as condenser and using outdoor air cooling heat exchanger 61 as the refrigerant loop of vaporizer 70a、120。
In the invention of this fourth aspect, by making cold-producing medium from outdoor air at outdoor air cooling heat exchanger 61 The heat obtained is discharged at regenerative heat exchanger 65, thus adsorber rotor 31 regenerates.
The invention of the 5th aspect is such that in the invention of second aspect, and above-mentioned air heater 65 is electric heater Or steam heater.
In the invention of the 5th aspect, by supplying by above-mentioned electric heater or steam heater etc. to adsorber rotor 31 Air heater 65 heating after air, thus adsorber rotor 31 regenerates.This air is at adsorption heat exchanger 22,24 Air after place's cooling, therefore the temperature rising of adsorber rotor 31 is inhibited, it is possible to regenerate at low temperature.
The invention of the 6th aspect is such that in the invention of the either side in first to the 5th, above-mentioned second dehumidifying Unit 20 and the 3rd Dehumidifying element 30 are configured to: relative to becoming the adsorption heat exchanger 22,24 adsorbing side, above-mentioned adsorber rotor The adsorption section 32 of 31 is positioned at the downstream of above-mentioned supply path 40, and the adsorption heat exchanger 24,22 becoming regeneration side is positioned at Downstream by the above-mentioned exhaust channel 50 of the reproducing unit 34 of this adsorber rotor 31.
In the invention of the 6th aspect, from the air of adsorption heat exchanger 22,24 outflow of absorption side at adsorber rotor At the adsorption section of 31,32 is the most dehumidified.On the other hand, regeneration side adsorption heat exchanger 24,22 is because of from adsorber rotor 31 again Life portion 34 flow out air and regenerate.
The invention of the 7th aspect is such that in the invention of the 6th aspect, two suctions of above-mentioned second Dehumidifying element 20 Attached heat exchanger 22,24 is made up of two heat exchangers being located on refrigerant loop 22a, and above-mentioned second Dehumidifying element 20 has Having: refrigerant flow path switching mechanism 25, it makes the Flow reverse of the cold-producing medium in above-mentioned refrigerant loop 20a, and makes above-mentioned two Individual adsorption heat exchanger 22,24 alternatively switches to the vaporizer becoming absorption side and the condenser becoming regeneration side；And air Path switching mechanism 26,27, the flow direction of its switching air, the adsorption heat exchanger 22,24 becoming vaporizer is connected to above-mentioned Supplying path 40, and the adsorption heat exchanger 24,22 becoming condenser is connected to above-mentioned exhaust channel 50, the above-mentioned 3rd removes The adsorber rotor 31 of wet unit 30 is configured to: across being arranged on above-mentioned supply path 40 and exhaust channel 50, and can be with two Rotary shaft between path 40,50 pivots about, and the part that above-mentioned supply path 40 passes through becomes above-mentioned adsorption section 32, The part that above-mentioned exhaust channel 50 passes through becomes above-mentioned reproducing unit 24.
In the invention of the 7th aspect, by switching the refrigerant cycle direction of refrigerant loop 20a so that two suctions Attached heat exchanger 22,24 alternatively switches to vaporizer and condenser, and also by switching air flue so that i.e. vaporizer Absorption side adsorption heat exchanger 22,24 be connected to supply path 40, and the regeneration side adsorption heat exchanger 24,22 of i.e. condenser It is connected to exhaust channel 50.Further, from the air of absorption side adsorption heat exchanger 22,24 outflow in the adsorption section of adsorber rotor 31 At 32 the most dehumidified, regeneration side adsorption heat exchanger 24,22 is because of the air that flows out from the reproducing unit 34 of adsorber rotor 31 Regeneration.
The invention of eighth aspect is such that in the invention of the either side in first to the 7th, the second Dehumidifying element 20 and the 3rd Dehumidifying element 30 be with between this second Dehumidifying element 20 and the 3rd Dehumidifying element 30 not via intercooling The mode of device is directly connected together by supplying path 40.
In the invention of this eighth aspect, the dehumidified air after being cooled at the second Dehumidifying element 20 is cold not via centre But directly it is supplied to the 3rd Dehumidifying element 30 device, and the most dehumidified at the 3rd Dehumidifying element 30.
The invention of the 9th aspect is such that in the invention of the either side in first to the 8th, and this dehumidification system has Standby return air flue 58, this return air flue 58 makes the return air scoop 58a connected with above-mentioned interior space S be connected to State the supply path 40 between the second Dehumidifying element 20 and the 3rd Dehumidifying element 30.
In the invention of the 9th aspect, return to supply the sky of path 40 by returning air flue 58 from interior space S Gas is supplied to the 3rd Dehumidifying element 30 after being mixed by the air of the second Dehumidifying element 20.
The invention of the tenth aspect is such that in the invention of the 9th aspect, is provided with on above-mentioned return air flue 58 Returning air fan 59, room air is pushed away toward supply path 40 by this return air fan 59.
In the invention of the tenth aspect, it is malleation in returning air flue 58 to be communicated in the system of supply path 40. If this system becomes negative pressure, then in the moisture of outdoor air likely can be inhaled into supply path 40, but according to the present invention, pass through Keep malleation in making said system, thus stop the humidity of system to rise.
The invention of the 11st aspect is such that in the invention of the 9th aspect, sets on above-mentioned return air flue 58 Having return air cooler 67, this return air cooler 67 is by the air cooling of flowing in this return air flue 58.
In the invention of the 11st aspect, owing to return air being cooled down and sends back in supply path 40, therefore, it is possible to Mixed supply air is maintained low temperature.It is maintained at low temperature owing to being supplied to the temperature of the air of adsorber rotor 31, because of The regeneration temperature of this adsorber rotor 31 is also suppressed in low temperature.
The invention of the 12nd aspect is such that in the invention of the either side in first to the 11st, is located at above-mentioned Adsorbent on adsorption heat exchanger 22,24 is: have when the relative humidity of air is the highest, and the per unit of this relative humidity increases The adsorbent of the biggest adsorption isotherm of adsorbance of amount, the adsorbent being located at above-mentioned adsorber rotor 31 is: has and works as air Relative humidity the lowest, the adsorbent of the adsorption isotherm that the adsorbance of the per unit increments of this relative humidity is the biggest.
In the invention of the 12nd aspect, in the heat of adsorption of the second Dehumidifying element 20 for processing higher levels of humidity air At exchanger 22,24, the adsorbent that maximal absorptive capacity can be obtained when high relative humidity (steam partial pressure) adsorb in a large number Moisture, and for processing at the adsorber rotor 31 of the 3rd Dehumidifying element 30 of relatively low humidity air, by low relative humidity Time be obtained in that the adsorbent of maximal absorptive capacity carrys out adsorption moisture efficiently.
The invention of the 13rd aspect is such that in the invention of the either side in first to the 12nd, this dehumidifying system System is configured to: relative to possessing above-mentioned first Dehumidifying element 60 and the system that both sets of above-mentioned 3rd Dehumidifying element 30, and above-mentioned second Dehumidifying element 20 is connected between above-mentioned first Dehumidifying element 60 and the 3rd Dehumidifying element 30.
In the invention of the 13rd aspect, relative to possessing both setting of the first Dehumidifying element 60 and the 3rd Dehumidifying element 30 System, the second Dehumidifying element 20 optionally unit is connected between the first Dehumidifying element 60 and the 3rd Dehumidifying element 30, thus Construct the dehumidification system possessing three grades of Dehumidifying elements 60,20,30.By so constructing three grades of dehumidification systems, it is possible to absorption is turned The regeneration temperature of son 31 suppresses at low temperature.
The invention of fourteenth aspect is such that in the invention of fourth aspect, at above-mentioned refrigerant loop 70a, on 120 Connection has: reheat heat exchanger 64, and it is arranged in the downstream of the above-mentioned adsorber rotor 31 on above-mentioned supply path 40, and Constitute condenser；With the return air heat exchanger 67 as air cooling end, this return air heat exchanger 67 is arranged in and makes The return air scoop 58a connected with above-mentioned interior space S is connected to above-mentioned second Dehumidifying element 20 and above-mentioned 3rd Dehumidifying element On the return air flue 58 of the supply path 40 between 30, and constitute vaporizer.
In the invention of fourteenth aspect, dehumidified at adsorber rotor 31 after air be reheated heat exchanger 64 and add Indoor it are supplied to after heat.As a result of which it is, the relative humidity being supplied to the air of indoor reduces.Further, room air is returning air heat After being cooled at exchanger 67, it is sent back to the upstream side of adsorber rotor 31.
In the present invention, reheat heat exchanger 64 and return air heat exchanger 67 be connected to refrigerant loop 70a, 120.At refrigerant loop 70a, in 120, flowed in the reheating heat exchanger 64 become condenser by the cold-producing medium after compressing Dynamic.It is to say, reheating at heat exchanger 64, cold-producing medium condenses toward heat radiation in air.Condensed cold-producing medium is subtracting After pressure, flow in the return air heat exchanger 67 become vaporizer.It is to say, returning at air heat exchanger 67, Cold-producing medium absorbs heat from air and evaporates.As it has been described above, in the present invention, obtain from air at air heat exchanger 67 returning The heat obtained is used in by reheating the heating that air is carried out by heat exchanger 64.
The invention of the 15th aspect is such that in the invention of fourteenth aspect, above-mentioned refrigerant loop 70a, 120 is Above-mentioned condenser 64,65 and vaporizer 61,67 are connected to the unitary kind of refrigeration cycle formula refrigerant loop 70a of a loop.
In the invention of the 15th aspect, above-mentioned condenser 64,65 and vaporizer 61,67 are connected to unitary kind of refrigeration cycle formula Refrigerant loop 70a.Thus, the simplification of refrigerant loop 70a can be sought.
The invention of the 16th aspect is such that in the invention of the 15th aspect, connects on above-mentioned refrigerant loop 70a It is connected to variable displacement compressor 80, when the required ability of above-mentioned condenser 64,65 side is higher than the institute of above-mentioned vaporizer 61,67 side When needing ability, the rotating speed of this compressor 80 be controlled such that condensing pressure close to goal pressure, when above-mentioned vaporizer 61,67 side Required ability higher than the required ability of above-mentioned condenser 64,65 side time, the rotating speed of this compressor 80 is controlled such that evaporation Pressure is close to goal pressure.
The refrigerant loop 70a of the invention of the 16th aspect connects the variable displacement compression having rotating speed to regulate Machine 80.The rotating speed of compressor 80 regulates according to operating condition.Specifically, it is higher than when the required ability of condenser 64,65 side During the required ability of vaporizer 61,67 side, the rotating speed of compressor 80 is controlled as making condensing pressure close to goal pressure.Thus, The required ability of condenser 64,65 side promptly can be guaranteed using condensing pressure as goal pressure.
When the required ability of vaporizer 61,67 side is higher than the required ability of condenser 64,65 side, the rotating speed of compressor 80 It is controlled as making evaporating pressure close to goal pressure.Thereby, it is possible to promptly guarantee evaporation using evaporating pressure as goal pressure The required ability of device 61,67 side.
The invention of the 17th aspect is such that in the invention of fourteenth aspect, above-mentioned refrigerant loop 70a, 120 is The circulating refrigerant loop of binary refrigeration 120, the circulating refrigerant loop of this binary refrigeration 120 has: loop, high-pressure side 120a, Its connection has the first compressor 130 and above-mentioned regenerative heat exchanger 65, and carries out kind of refrigeration cycle；Low-pressure side loop 120b, its Connect and have the second compressor 150 and above-mentioned outdoor air cooling heat exchanger 61, and carry out kind of refrigeration cycle；Exchange with intermediate heat Device 140, it makes between the low pressure refrigerant of above-mentioned high-pressure side loop 120a and the high-pressure refrigerant of above-mentioned low-pressure side loop 120b Carry out heat exchange.
In the invention of the 17th aspect, loop, high-pressure side 120a and outdoor air that regenerative heat exchanger 65 is connected are cold But the low-pressure side loop 120b that heat exchanger 61 is connected is connected with each other via intermediate heat exchanger 140, constitutes binary refrigeration and follows Ring type refrigerant loop 120.Thereby, it is possible to guarantee condensing pressure and the outdoor air cooling heat of regenerative heat exchanger 65 fully Difference between the evaporating pressure of exchanger 61.As a result of which it is, the air heating efficiency at regenerative heat exchanger 65 rises, and The cooling capacity of outdoor air cooling heat exchanger 61 also rises.
-effect of invention-
According to the present invention, compared with conventional system, it is possible to realize significantly energy-saving.
Specifically, first, for carrying out cooling and dehumidifying this point at the first Dehumidifying element 60, have following excellent Point, it may be assumed that substantial amounts of steam may be contained in outdoor air, in uncongealable scope, to cool down the cost carrying out dehumidifying Relatively low, and, energy input is smaller.
Owing to the outdoor air after dehumidifying at the first Dehumidifying element 60 still containing more moisture, therefore second In Dehumidifying element 20, if carrying out adsorption and dehumidification with adsorber rotor 31 as in the past, then because can produce while dehumidifying Heat of adsorption, so needing higher regeneration temperature.Then, in the present invention, by being carried out cold by adsorption heat exchanger 22,24 But adsorb and remove heat of adsorption while adsorbing such that it is able to suppression temperature rises, while being efficiently obtained by dew Point-10～the air of-20 DEG C.
Owing to the moisture in the air of dew point less than-10 DEG C is few, thus in the present invention, enter at the 3rd Dehumidifying element 30 The heat of adsorption produced during row absorption diminishes, and the temperature that therefore heat of adsorption causes rises will not become the factor hindering absorption.To this end, Use and implement absorption, energy compared with the adsorber rotor 31 of the easier contact area increased with air of adsorption heat exchanger 22,24 Enough reduce the time of staying of per unit volume, thus dehumidify efficiently.
According to the present invention, by using adsorption heat exchanger 22,24 in the second Dehumidifying element 20, the humidity of air is made to drop Also temperature is made to reduce while low, therefore, it is possible to reduce the regeneration temperature of adsorber rotor 31.It is to say, removed by combination second The adsorber rotor 31 of adsorption heat exchanger the 22,24 and the 3rd Dehumidifying element 30 of wet unit 20 carrys out the suction to the 3rd Dehumidifying element 30 Attached rotor 31 supplies low temperature and the air of low dew point, even if therefore adsorbing more moisture at adsorber rotor 31 and making under humidity Fall, produces heat of adsorption the most hardly, and the temperature rising of adsorber rotor 31 is inhibited.As a result of which it is, regeneration temperature can be reduced Degree, thus realize energy-saving and cost degradation.
Owing to regeneration temperature can be reduced, therefore, it is possible to the heat that the manufacture equipment of such as lithium ion battery is discharged is made It is used as the renewable sources of energy of adsorber rotor 31, it is thus possible to energy-saving further.
According to the invention of above-mentioned second aspect, when making, with air heater 65 heating, the air that adsorber rotor 31 regenerates, Regeneration temperature can be made the lowest, therefore, it is possible to reduce the heat required for heating, thus realize energy-saving.
According to the invention of the above-mentioned third aspect, with by be arranged on carry out kind of refrigeration cycle refrigerant loop 70a, on 120 The regenerative heat exchanger 65 that condenser is constituted is as air heater 65, therefore, it is possible to more efficiently heating is supplied to adsorber rotor 31 Regeneration air such that it is able to seek energy-saving further.
According to the above-mentioned invention according to fourth aspect, owing to cold-producing medium can be cooled down at heat exchanger 61 at outdoor air The diarrhea of heat type obtained from outdoor air for regenerative heat exchanger 65 at make adsorber rotor 31 regenerate, during therefore, it is possible to promote regeneration Energy efficiency.
According to the invention of above-mentioned 5th aspect, make when heating with the air heater 65 of electric heater or steam heater etc. During the air that adsorber rotor 31 regenerates, it is possible to make regeneration temperature the lowest, therefore, it is possible to reduce the heat required for heating, Thus realize energy-saving.
According to the above-mentioned invention according to the 6th aspect, due to can become the absorption adsorption heat exchanger 22 of side, 24 one-tenth For the upstream side of adsorption section 32 of adsorber rotor 31, the air of low humidity and low temperature is supplied to the adsorption section 32 of adsorber rotor 31, Therefore the temperature rising of adsorber rotor 31 is inhibited.Further, the heated sky by the reproducing unit 34 by adsorber rotor 31 Gas is supplied to become the adsorption heat exchanger 24,22 of regeneration side, it is also possible to this air is used in this adsorption heat exchanger 24,22 Regeneration.
According to the invention of above-mentioned 7th aspect, use arrange in the second Dehumidifying element 20 two adsorption heat exchangers 22, 24 and alternatively switch to absorption side and regeneration side mode, by make its with use adsorber rotor 31 the 3rd Dehumidifying element 30 Combination, it is possible to be easily achieved the device carrying out continuous dehumidifying operating.
According to the invention of above-mentioned eighth aspect, due to not via intercooler will at the second Dehumidifying element 20 cold But the dehumidified air after is supplied to the 3rd Dehumidifying element 30, when the intercooler that therefore in the past typically can use is for cooling down air The required energy is no longer needed for.Further, in the invention, owing to the cooling of air can be carried out at the second Dehumidifying element 20 And dehumidifying, thus do not use the structure of intercooler to be achieved, therefore can realize further energy-saving and cost degradation.
According to the invention of above-mentioned 9th aspect, return to supply path 40 by returning air flue 58 from interior space S Air also utilizes together with the air by the second Dehumidifying element 20 such that it is able to the air of low humidity and low temperature is supplied to absorption The adsorption section 32 of rotor 31.
According to the invention of above-mentioned tenth aspect, room air is pushed away toward confession by arranging on above-mentioned return air flue 58 The return air fan 59 of gas path 40 so that just become in returning air flue 58 to be communicated in the system of supply path 40 Pressure.By malleation will be kept in this system, it is possible to stop moisture to enter supply path 40, therefore, it is possible to the performance of the system of lifting.
According to the invention of above-mentioned 11st aspect, make returning air flue 58 by arranging on return air flue 58 The air cooled return air cooler 67 of middle flowing, sends back to the return air after cooling in supply path 40 so that The temperature of mixed supply is able to maintain that at low temperature.Thus, the temperature of the air being supplied to adsorber rotor 31 is maintained at low temperature, The regeneration temperature of adsorber rotor 31 is also suppressed in low temperature, it is thus possible to the heat needed for suppression regeneration is sought energy-conservation further Change.
According to the invention of above-mentioned 12nd aspect, by making the adsorbent being located at adsorption heat exchanger 22,24 work as having The relative humidity of air is the highest, the adsorbent of the adsorption isotherm that the adsorbance of the per unit increments of relative humidity is the biggest, And making the adsorbent being located at adsorber rotor 31 is to have when the relative humidity of air is the lowest, the per unit increments of relative humidity The adsorbent of the biggest adsorption isotherm of adsorbance, it is possible to make adsorption heat exchanger 22,24 and adsorber rotor 31 respectively To optimal effect on moisture extraction, it is thus possible to improve the efficiency of system.
According to the invention of above-mentioned 13rd aspect, owing to being relative to possessing the first Dehumidifying element 60 and the 3rd Dehumidifying element Both the system that sets of 30, makes the second Dehumidifying element 20 be connected between the first Dehumidifying element 60 and the 3rd Dehumidifying element 30, therefore exists Both set in system that also be able to realize can be at the three of low-temp recovery grade dehumidification system, it is thus possible to realize both having set the energy-saving of system.
According to the invention of fourteenth aspect, by making reheating heat exchanger 64 and return air heat exchanger 67 be connected to Refrigerant loop 70a, 120, it is possible to will be used for reheating returning the diarrhea of heat type reclaimed from air at air heat exchanger 67 The heating that air is carried out by heat exchanger 64.As a result of which it is, the energy saving of dehumidification system can be promoted further.
According to the invention of the 15th aspect, return owing to making condenser 64,65 and vaporizer 61,67 be connected to a cold-producing medium Road 70a, therefore, it is possible to seek this refrigerant loop 70a simplification, cost degradation.
According to the invention of the 16th aspect, when the required scarce capacity of condenser 64,65 side, it is possible to make condensing pressure fast Arrive goal pressure fastly, so that it is guaranteed that the required ability of condenser 64,65.Required scarce capacity when vaporizer 61,67 side Time, it is possible to make evaporating pressure promptly arrive goal pressure, so that it is guaranteed that the required ability of vaporizer 61,67.
According to the invention of the 17th aspect, by being configured to the circulating refrigerant loop of binary refrigeration 120, it is possible to fully Guarantee the height pressure reduction between regenerative heat exchanger 65 and outdoor air cooling heat exchanger 61.As a result of which it is, can be fully Obtain regenerative heat exchanger 65 and the ability of outdoor air cooling both heat exchangers 61.
Accompanying drawing explanation
Fig. 1 is the integrally-built brief configuration figure of the dehumidification system illustrating embodiment, and Fig. 1 illustrates that Dehumidifying element is State in one action.
Fig. 2 is the integrally-built brief configuration figure of the dehumidification system illustrating embodiment, and Fig. 2 illustrates that Dehumidifying element is State in two actions.
Fig. 3 is the piping diagram of the refrigerant loop of the dehumidification system of embodiment.
Fig. 4 (A) is curve chart, and it illustrates that the adsorption isotherm of the adsorbent for adsorption heat exchanger, Fig. 4 (B) are bent Line chart, it illustrates the adsorption isotherm of the adsorbent for adsorber rotor.
Fig. 5 is curve chart, and it illustrates the dehumidifying carried out with the first Dehumidifying element, the second Dehumidifying element and the 3rd Dehumidifying element Optimum range.
Fig. 6 is schematic diagram, and it illustrates the action of the dehumidification system relating to embodiment.
Fig. 7 is schematic diagram, and it illustrates the action of the dehumidification system relating to comparative example.
Fig. 8 is the piping diagram of the refrigerant loop of the dehumidification system that embodiment the first variation relates to.
Fig. 9 is the piping diagram of the refrigerant loop of the dehumidification system that embodiment the second variation relates to.
Figure 10 (A) and Figure 10 (B) is the second Dehumidifying element of the dehumidification system illustrating that embodiment the 3rd variation relates to Figure, Figure 10 (A) is the first operating state, and Figure 10 (B) is the second operating state.
Detailed description of the invention
Below, with reference to the accompanying drawings embodiments of the present invention are described in detail.
Embodiments of the present invention relate to the dehumidification system 10 dehumidifying interior space S.This dehumidification system 10 is by room Outer air OA dehumidifies, and as supply SA, this air is supplied to indoor.Interior space S as dehumidifying object is lithium ion battery The dry dustless region of production line, this is dried dustless region needs low dew point air, and the dehumidification system 10 of Fig. 1 constitutes lithium-ion electric A part for the production line in pond.
As it is shown in figure 1, dehumidification system 10 possesses the first Dehumidifying element the 60, second Dehumidifying element 20 and the 3rd Dehumidifying element 30。
This dehumidification system 10 possesses supply path 40, and this supply path 40 is for using outdoor air OA dehumidifying and as supply SA is supplied to indoor.Supply path 40 has first to the 3rd for gas circuit 41,42,43.First is formed at the second dehumidifying for gas circuit 41 The upstream side of unit 20.Second is formed between the second Dehumidifying element 20 and the 3rd Dehumidifying element 30 for gas circuit 42, the second supply Road 42 is attached directly to the second Dehumidifying element 20 and the 3rd Dehumidifying element 30 in the way of not via intercooler.3rd supplies Gas circuit 43 is formed at the downstream of the 3rd Dehumidifying element 30.
Further, dehumidification system 10 possesses exhaust channel 50, and this exhaust channel 50 is for by empty for a part for supply path 40 Gas is discharged into outdoor as aerofluxus EA.Exhaust channel 50 possesses the first to the 4th exhaust line 51,52,53,54.The stream of exhaust channel 50 Entering end and be connected to the second confession gas circuit 42, the outflow end of exhaust channel 50 is communicated in outdoor.
Above-mentioned supply path 40 is to be supplied to the path that the air of interior space S passes through, and exhaust channel 50 is for being discharged into outdoor The path that air passes through, is constituted air flue 40,50 by this supply path 40 and exhaust channel 50.At this air flue 40,50 On, from be supplied to indoor the air i.e. entrance side of outdoor air be configured with successively above-mentioned first Dehumidifying element 60, above-mentioned second Dehumidifying element 20 and above-mentioned 3rd Dehumidifying element 30.
First Dehumidifying element 60 possesses: outdoor air cooling heat exchanger 61, above-mentioned outdoor air is cooled down and carries out by it Dehumidifying；With water-collecting tray 62, it reclaims and cools down the condensed water of heat exchanger 61 at outdoor air.Outdoor air cooling heat exchanger 61 are located at first in gas circuit 41.Additionally, second is provided with the air-feeding ventilator 63 for air relocates to indoor for gas circuit 42.? 3rd is provided with, for gas circuit 43, the reheating heat exchanger 64 heated by air.
Second Dehumidifying element 20 possesses compressor the 21, first adsorption heat exchanger 22, the exchange of expansion valve the 23, second heat of adsorption Device 24 and connect have the dehumidifying side refrigerant loop 20a of four-way change-over valve 25, these devices to be accommodated in and not shown come In housing.Dehumidifying side refrigerant loop 20a constitutes thermal medium loop, and the cold-producing medium that this thermal medium loop is provided as thermal medium follows Ring.Each adsorption heat exchanger 22,24 is loaded with the fin tube type heat exchanger of adsorbent for surface, is provided with storage the first suction in housing The accommodation chamber of attached heat exchanger 22 and the accommodation chamber (not shown) of storage the second adsorption heat exchanger 24.
Four-way change-over valve 25 has the first to the 4th port, and the first port is connected to the discharge side of compressor 21, and second leads to Mouth is connected to the suction side of compressor 21, and third connectivity mouth is connected to the end of the first adsorption heat exchanger 22, and the 4th port connects End in the second adsorption heat exchanger 24.Four-way change-over valve 25 is configured to (represent with the solid line in Fig. 1 in the first state State) and the second state (state represented with the dotted line in Fig. 1) between switch, in the first state, the first port and the Three port connections and the second port and the 4th port connect, in the second condition, and the first port and the 4th port connection and second Port connects with third connectivity mouth.
Second Dehumidifying element 20 possesses: first flow path switching part 26, and it changes two adsorption heat exchangers 22,24 of inflow The flow direction of air；With second flow path switching part 27, it changes the flow direction of the air flowing out two adsorption heat exchangers 22,24.Respectively Stream switching part 26,27 is made up of multiple air-valves of open and close type.Each stream switching part 26,27 is configured to in Fig. 1 The stream of air is switched between state that solid line represents and the state represented with the second solid line.
As it has been described above, the second Dehumidifying element is such Dehumidifying element: there is four-way change-over valve and cut as refrigerant flow path Converting mechanism 25, and there is first flow path switching part 26 and second flow path switching part 27 as air flue switching mechanism 26,27, This four-way change-over valve by be located on refrigerant loop 20a two adsorption heat exchangers 22,24 alternatively switch to dehumidifying side with Regeneration side, this first flow path switching part 26 and second flow path switching part 27 switch over the heat of adsorption exchange so that becoming vaporizer Device is connected to supply path 40, and makes the adsorption heat exchanger becoming condenser be connected to exhaust channel 50.
3rd Dehumidifying element 30 has adsorber rotor 31 and regenerative heat exchanger (air heater) 65.Adsorber rotor 31 with The mode being loaded with adsorbent on the surface of discoideus porous substrate is constituted.Adsorber rotor 31 is configured to: across being arranged in supply On path 40 and exhaust channel 50, and driven by drive mechanism (omitting diagram), enter centered by the axle center between two path S Row rotates.
It is formed on adsorber rotor 31: the first suction supplying the air of flowing in gas circuit 43 to pass through at the 3rd of supply path 40 Attached portion 32；The second adsorption section 33 that the air of flowing passes through in the first row gas circuit 51 of exhaust channel 50；With at exhaust channel The reproducing unit 34 that in the second row gas circuit 52 of 50, the air of flowing passes through.At the first adsorption section 32 and the second adsorption section 33, empty Moisture in gas is adsorbed, and at reproducing unit 34, the moisture in adsorbent is discharged in air.
Above-mentioned first row gas circuit 51 is formed at the upstream side of the second adsorption section 33 of adsorber rotor 31.Second row gas circuit 52 shape Become between the second adsorption section 33 and the reproducing unit 34 of this adsorber rotor 31 of adsorber rotor 31.3rd exhaust line 53 is formed at suction Between reproducing unit 34 and second Dehumidifying element 20 of attached rotor 31.4th exhaust line 54 is formed at the downstream of the second Dehumidifying element 20 Side.
Second row gas circuit 52 is provided with the above-mentioned regenerated heat exchange heated by air to make adsorber rotor 31 regenerate Device 65, this regenerative heat exchanger 65 is located at the entrance side of the regeneration air being supplied to adsorber rotor 31.4th exhaust line 54 sets There is the scavenger fan 66 for air being discharged into outdoor.3rd exhaust line 53 is connected to first for gas circuit 41 via branch path 55.
Dehumidification system 10 possesses the return air flue 58 that room air RA sends back to supply path 40.Return air flue The end that flows into of 58 is connected to the return air scoop 58a that connect with interior space S, and the outflow end of return air flue 58 is connected to the Two for gas circuit 42.It is to say, the outflow end returning air flue 58 is connected to supply the second Dehumidifying element 20 on path 40 And between adsorber rotor 31.Further, the outflow end returning air flue 58 is more positioned at upstream side than the inflow end of exhaust channel 50. It is provided with the return air fan 59 that room air is sent to supplies path 40 on air flue 58 returning and constitutes air cooling The return air heat exchanger (return air cooler) 67 in portion.
Use between above-mentioned adsorption heat exchanger 22,24 and adsorber rotor 31 and have adsorbent of different nature.Specifically, In order to operate adsorbent under high water vapor dividing potential drop (relative humidity), the adsorption heat exchanger 22,24 being positioned at preceding-stage side uses height Molecule sorbent, Type B silica gel etc. have as shown in Figure 4 (A) like that relative to the straight line extended towards upper right side in down convex shape The adsorbent of adsorption isotherm, and in order to operate adsorbent under low steam partial pressure (relative humidity), be positioned at rear-stage side It is past relative to the straight line extended towards upper right side as shown in Figure 4 (B) that adsorber rotor 31 uses A type silica gel, zeolite etc. to have Protrude above the adsorbent of the adsorption isotherm of shape.It is to say, at adsorption heat exchanger 22,24, selection has ought be the wettest Spend big compared with moisture content time high, and when the relative humidity of air is the highest, and the adsorbance of the per unit increments of relative humidity is the biggest The adsorbent of adsorption isotherm, and at adsorber rotor 31, select that to have the moisture content when relative humidity is relatively low big, and when sky The relative humidity of gas is the lowest, the adsorbent of the adsorption isotherm that the adsorbance of the per unit increments of relative humidity is the biggest.
In Figure 5, the Suitable ranges of the dehumidifying carried out with each Dehumidifying element 60,20,30 is shown in transverse axis it is Dry-bulb temperature, the longitudinal axis are in the curve chart of relative humidity.Cool down heat exchanger 61 with the outdoor air of the first Dehumidifying element 60 to enter The cooling and dehumidifying of row is suitable for use in the region of dew point more than about 8 DEG C, with the adsorption heat exchanger 22 of the second Dehumidifying element 20, 24 adsorption and dehumidifications carried out are suitable in dew point about 10 DEG C～the region of-20 DEG C using, and turn with the absorption of the 3rd Dehumidifying element 30 The dry type dehumidifying that son 31 is carried out is suitable in dew point about-20 DEG C～the region of-80 DEG C using.
As it is shown on figure 3, the dehumidification system 10 of present embodiment possesses refrigeration unit 70, this refrigeration unit 70 has connection to be had The refrigerant loop 70a of above-mentioned each heat exchanger 61,64,65,67.The refrigerant loop 70a of present embodiment is that cold-producing medium exists The unitary kind of refrigeration cycle formula refrigerant loop of circulation in one loop.
On refrigerant loop 70a, connection has compressor 80.Compressor 80 be rotary, swing type, vortex etc. are rotary Fluid machinery.Compressor 80 is configured to the variable displacement that rotating speed can be adjusted by converter.
The discharge side of compressor 80 branches into the first drain passageway 71 and the second drain passageway 72.At the first drain passageway 71 On, it is connected with above-mentioned regenerative heat exchanger the 65, first expansion valve 81, above-mentioned reheating heat exchange in turn toward downstream from upstream side Device 64 and the second expansion valve 82.On the second drain passageway 72, it is connected with condensing pressure from upstream side in turn toward downstream and adjusts Heat exchanger 83 and the 3rd expansion valve 84.Adjust at condensing pressure and be provided with the first of conveying chamber outer air near heat exchanger 83 Outdoor fan 85.
The first suction passage 73 and the second suction passage 74 is branched in the suction side of compressor 80.In the first suction passage On 73, it is connected with above-mentioned outdoor air from upstream side in turn toward downstream and cools down heat exchanger 61, check-valves 86, return air heat Exchanger 67.First suction passage 73 connects have and walk around outdoor air cooling heat exchanger 61 and the shunt valve of check-valves 86 77.Shunt valve 77 is provided with electromagnetic on-off valve 92.In the second suction passage 74, it is sequentially connected with toward downstream from upstream side The 4th expansion valve 87 and evaporating pressure is had to adjust heat exchanger 88.Adjust at evaporating pressure and be provided with conveying near heat exchanger 88 Second outdoor fan 89 of outdoor air.
Being connected between the outflow end and the inflow end of each suction passage 73,74 of each drain passageway 71,72 has one to converge Pipe 75.Convergence tube 75 is provided with gas-liquid separator 79.The gas phase portion of gas-liquid separator 79 connects and has the stream of ascending pipe 76 Enter end.The outflow end of ascending pipe 76 is connected to the suction tube of compressor 80.Ascending pipe 76 is provided with the 5th expansion valve 91.
Regenerative heat exchanger 65, reheating heat exchanger 64 and condensing pressure adjust heat exchanger 83 and constitute cold-producing medium toward empty The condenser dispelled the heat in gas and condense.Outdoor air cooling heat exchanger 61, return air heat exchanger 67 and evaporating pressure are adjusted Whole heat exchanger 88 constitutes cold-producing medium and absorbs heat from air and the vaporizer that evaporates.Above-mentioned each expansion valve 81,82,84,87,91 example As for electric expansion valve, these expansion valves constitute the mechanism of decompressor adjusting refrigerant pressure.
Dehumidification system 10 possesses various sensor.Specifically, dehumidification system 10 possesses: high-pressure pressure sensor 95, its The high-pressure (condensing pressure) of detection refrigerant loop 70a；With low-pressure sensor 96, it detects refrigerant loop 70a Low pressure (evaporating pressure).Further, dehumidification system 10 possesses load detecting element, and it is used for detecting regenerative heat exchanger 65, reheat heat exchanger 64, outdoor air cooling heat exchanger 61 and return the required ability of air heat exchanger 67.This is born Carry detecting element such as by first air temperature sensor 101 of air themperature in detection regenerative heat exchanger 65 downstream, inspection Survey and reheat second air temperature sensor 102 of air themperature in heat exchanger 64 downstream, sensing chamber's outer air cooling heat 3rd air temperature sensor 103 and the detection of the air themperature in exchanger 61 downstream return to air heat exchanger 67 downstream 4th air temperature sensor 104 of the air themperature of side is constituted.
Dehumidification system 10 possesses controller 110.Controller 110 is according to the detected value or defeated by user of above-mentioned various sensors The various setting values entered to control the rotating speed of compressor 80, the aperture of each expansion valve 81,82,84,87,91, each outdoor fan 85, The air output etc. of 89.
-motion-
The motion of dehumidification system 10 is illustrated.
(basic acts of the second Dehumidifying element)
When dehumidification system 10 operates, the second Dehumidifying element 20 alternatively enters (such as every five minutes) at intervals of set time The first action shown in row Fig. 1 and the second action shown in Fig. 2.
In the first action, by air dewetting at the second adsorption heat exchanger 24, make the first adsorption heat exchanger simultaneously The adsorbent reactivation of 22.
Specifically, in the dehumidifying side refrigerant loop 20a in the first action, four-way change-over valve 25 becomes the shape of Fig. 1 State, expansion valve 23 is controlled as regulation aperture.First flow path switching part 26 makes first for gas circuit 41 and the second adsorption heat exchanger Accommodation chamber (the omitting diagram) connection of 24, and make the accommodation chamber of the 3rd exhaust line 53 and the first adsorption heat exchanger 22 (omit Diagram) connection.Second flow path switching part 27 makes the accommodation chamber and second of the second adsorption heat exchanger 24 connect for gas circuit 42, and The accommodation chamber and the 4th exhaust line 54 that make the first adsorption heat exchanger 22 connect.
In the first action, the cold-producing medium after being compressed by compressor 21 is by handing in the first heat of adsorption after four-way change-over valve 25 Parallel operation 22 flows.At the first adsorption heat exchanger 22, adsorbent is by refrigerant heat, thus the moisture in adsorbent is past Air is discharged.Dispel the heat and condensed cold-producing medium at the first adsorption heat exchanger 22, second after expansion valve 23 reduces pressure Adsorption heat exchanger 24 flows.At the second adsorption heat exchanger 24, the moisture in air is adsorbed by adsorbent, and now produces Heat of adsorption be provided to cold-producing medium.At the second adsorption heat exchanger 24 heat absorption and evaporate after cold-producing medium, be inhaled into compression Machine 21 is interior and is compressed.
In the second action, by air dewetting at the first adsorption heat exchanger 22, make the second adsorption heat exchanger simultaneously The adsorbent reactivation of 24.
In dehumidifying side refrigerant loop 20a in the second action, four-way change-over valve 25 becomes the state of Fig. 2, expansion valve 23 are controlled as regulation aperture.First flow path switching part 26 makes first for gas circuit 41 and the accommodation chamber of the first adsorption heat exchanger 22 (omitting diagram) connection, and make the 3rd exhaust line 53 connect with the accommodation chamber (omitting diagram) of the second adsorption heat exchanger 24. Second flow path switching part 27 makes the accommodation chamber and second of the first adsorption heat exchanger 22 connect for gas circuit 42, and makes the second absorption Accommodation chamber and the 4th exhaust line 54 of heat exchanger 24 connect.
In the second action, the cold-producing medium compressed by compressor 21, by after four-way change-over valve 25, is handed in the second heat of adsorption Parallel operation 24 flows.At the second adsorption heat exchanger 24, adsorbent is by refrigerant heat, thus the moisture in adsorbent is past Air is discharged.Heat radiation at the second adsorption heat exchanger 24 and condensed cold-producing medium, the after decompression in expansion valve 23 One adsorption heat exchanger 22 flows.At the first adsorption heat exchanger 22, the moisture in air is adsorbed by adsorbent, and now produces Raw heat of adsorption is provided to cold-producing medium.Cold-producing medium after absorbing heat at the first adsorption heat exchanger 22 and evaporating, is inhaled into compression Machine 21 is interior and is compressed.
(basic acts of refrigeration unit)
When dehumidification system operates, refrigeration unit 70 carries out kind of refrigeration cycle.Refrigeration unit 70 carries out basic acts Time, the aperture of first expansion valve the 81, second expansion valve 82 and the 5th expansion valve 91 is suitably adjusted, and the 3rd expansion valve 84 He 4th expansion valve 87 becomes full-shut position.Further, the first outdoor fan 85 and the second outdoor fan 89 become halted state.
Cold-producing medium after being compressed by compressor 80, flows after being sent to the first drain passageway 71 in regenerative heat exchanger 65 Dynamic.At regenerative heat exchanger 65, cold-producing medium condenses toward heat radiation in air.Condensed refrigeration at regenerative heat exchanger 65 Agent, after being depressurized to the lowest pressure, flows at the first expansion valve 81 in reheating heat exchanger 64.Reheating heat At exchanger 64, cold-producing medium condenses toward heat radiation in air.Reheating condensed cold-producing medium at heat exchanger 64, second Pass through gas-liquid separator 79 after being depressurized to low pressure at expansion valve 82, be then passed in the first suction passage 73.Need explanation , the aperture of the second expansion valve 82 is that the degree of superheat of the cold-producing medium according to compressor 80 suction side controls.
The cold-producing medium being sent to the first suction passage 73 flows in outdoor air cooling heat exchanger 61.At outdoor air At cooling heat exchanger 61, cold-producing medium absorbs heat from air and evaporates.At outdoor air cooling heat exchanger 61 after evaporation Cold-producing medium, by flowing after check-valves 86 in returning air heat exchanger 67.Returning at air heat exchanger 67, cold-producing medium Absorb heat from air and evaporate.Returning at air heat exchanger 67 cold-producing medium after evaporation, in being inhaled into compressor 80 and Compressed.
(motion of dehumidification system)
Then, the motion of dehumidification system 10 is illustrated.When dehumidification system 10 operates, the second Dehumidifying element 20 carry out the first action and the second action alternately.And air-feeding ventilator 63, scavenger fan 66 and return air fan 59 are transported Turn.
Outdoor air OA flows into supply path 40 first for gas circuit 41.This air is the air that comparison is hot and humid.? First is cooled down heat exchanger 61 for the air of flowing in gas circuit 41 by the outdoor air of the first Dehumidifying element 60 cools down.Cooling Time from air produce condensed water be recycled in water-collecting tray 62.In the first action, cool down heat exchanger at outdoor air The air after being cooled at 61 and dehumidifying the second adsorption heat exchanger 24 by the second Dehumidifying element 20.Hand in the second heat of adsorption At parallel operation 24, the moisture in air is adsorbed by adsorbent.In the second action, cold at outdoor air cooling heat exchanger 61 But with dehumidifying after air at the first adsorption heat exchanger 22 of the second Dehumidifying element 20 dehumidified.
The heat of adsorption produced when moisture is adsorbed by adsorbent at each adsorption heat exchanger 22,24 is provided to heat of adsorption The cold-producing medium of flowing in exchanger 22,24.Owing to by the cooling effect from cold-producing medium, therefore flowing in supply path 40 Air is dehumidified and humidity reduces, and cooled and temperature also reduces.
In the second Dehumidifying element 20 dehumidified after air second for gas circuit 42 flows, and pass through adsorber rotor First adsorption section 32 of 31.As a result of which it is, the moisture in this air is adsorbed the adsorbent of rotor 31.At adsorber rotor 31 Locate dehumidified after air after reheating and being adjusted temperature at heat exchanger 64, be supplied to indoor as supply SA.
A part for the air of flowing in gas circuit 42 is supplied to flow into exhaust channel 50 and by adsorber rotor 31 second Second adsorption section 33.As a result of which it is, the moisture in this air is adsorbed the adsorbent of rotor 31.Second adsorption section 33 is high The reproducing unit 34 passed through of regeneration air of temperature move toward the first adsorption section 32 during stage, second in gas circuit 42 Air flows through the second adsorption section 33, thus produces the effect of cooling the second adsorption section 33.
At the second adsorption section 33 of adsorber rotor 31 dehumidified after air flow in second row gas circuit 52, and It is heated at regenerative heat exchanger 65.The air after the Bei Jiare reproducing unit 34 by adsorber rotor 31.As a result of which it is, moisture from The adsorbent of adsorber rotor 31 departs from air, thus adsorbent reactivation.For making air that adsorber rotor 31 regenerates Three exhaust line 53 flow, and mixes with the air being passed through two from branch path 55.
In the first action, this air the first adsorption heat exchanger 22 by the second Dehumidifying element 20.In the first absorption At heat exchanger 22, moisture departs from toward air from adsorbent, thus adsorbent reactivation.For making the first adsorption heat exchanger 22 The air of adsorbent reactivation flow in the 4th exhaust line 54, and be discharged into outdoor as aerofluxus EA.In the second action, empty After gas makes the adsorbent reactivation of the second adsorption heat exchanger 22, it is discharged into outdoor as aerofluxus EA.As it has been described above, in present embodiment In, make the air after adsorber rotor 31 regeneration also be used in the regeneration of adsorption heat exchanger 22,24.
A part for air in interior space S is discharged into outdoor as aerofluxus EA.Further, air in interior space S A part flows into and returns air flue 58.The air flowed in returning air flue 58 is returned air heat exchanger 67 and cools down After, it is sent back to second for gas circuit 42.This send back to air dehumidified with at the second Dehumidifying element 20 after air mix.From indoor Compared with air after the air that space S is sent back to is dehumidified with at the second Dehumidifying element 20, the temperature of the air being sent back to, wet Spend relatively low.Therefore, the air after dehumidified at the second Dehumidifying element 20 by with send air back to and mix and to become more low temperature low Wet.Thus, the water adsorption capability improving at adsorber rotor 31.
In returning air flue 58, the air of flowing is returned air fan 59 and pushes the second air-breathing road 42.Herein, as Fruit is to be not provided with returning air fan 59 and room air only sucks the structure on the second air-breathing road 42 with air-feeding ventilator 63, then Outside conduit, likely suck the outdoor air of high humility, cause the humidity supplying SA to raise.But in the present embodiment, Because being to return air fan 59 to force air in the second air-breathing road 42, so becoming malleation in system, it is possible to prevent from inhaling Enter the outdoor air of high humility.Therefore, it is possible to prevent the humidity supplying SA from rising.
(energy-saving of dehumidification system)
Fig. 6 is the schematic diagram of the dehumidification system relating to present embodiment.Fig. 7 is the signal of the dehumidification system relating to comparative example Figure, this comparative example is configured to after the first Dehumidifying element of cooling and dehumidifying, uses two-stage adsorber rotor formula Dehumidifying element.At figure In 6 and Fig. 7, for each point shown in the capitalization of English alphabet, illustrating dry-bulb temperature (DEG C) upper row, illustrate water lower row Vapor volume (g/Kg).
(comparative example)
In a comparative example, the component in loop is attached with symbol 101～symbol 109, air flue is attached with symbol 111 ～symbol 120.
In this comparative example, so that dry-bulb temperature is 35 DEG C by outdoor air cooling heat exchanger 101, steam vapour amount is Outdoor air (K point) cooling and dehumidifying of 23.3g/Kg so that it is after changing into temperature and the steam vapour amount of L point, then make itself and path At the M point of 118, air converges and reduces steam vapour amount (N point).In this air is introduced the dehumidifying rotor 102 of the first order and carry out Dehumidifying so that it is change into O point, then makes itself and the return air (Q point) coming from the interior space of flowing in path 114 Carry out cooling down (R point) with cooling coil 105 after converging.Afterwards, the low dew point sky of S point is generated with the dehumidifying rotor 106 of the second level Gas is also supplied to indoor (being dried dust free room).At S point, air is practically free of steam, and dew point is about-50 DEG C.
Flowed in path 115,116 by the dehumidified air after sucking moisture at the adsorption section of dehumidifying rotor 106, Jin Erfen It flow to path 117 and path 118.The air of path 117 is heated by heater 107 and changes after state is T point, and at path In 115, the air of flowing converges and changes state is U point.This air and then heated by heater 108 and to become the high temperature of V point empty Gas (140 DEG C), departs from heel row toward outdoor making moisture from dehumidifying rotor 102.Now it is warmed up to during regeneration temperature (140 DEG C) be made The heat energy that the energy is electric heater or steam heater.In path 118, the air of the W point of flowing is passing through outdoor air Mix with the air of L point after cooling heat exchanger 101.
As it has been described above, in the structure of comparative example, it is necessary to the regeneration temperature making dehumidifying rotor 102 is high temperature (140 DEG C), No matter being to use steam or use electric power, its required energy is the biggest.
Further, in the structure of comparative example, although by the humidity of the air after the dehumidifying rotor 102 of the first order can under Fall, but temperature can rise, therefore at the dehumidifying rotor 106 of the second level, in order to obtain the air of low dew point, it is necessary to entering Being cooled down by air at Kou, the energy consumption of the cooling coil 105 arranged for this is the biggest.
Additionally, in the conventional structure enumerated as comparative example, the energy usage amount of air conditioning system is at lithium ion battery Production process in account for about the 50% of overall process, this is to the saving energy of dry dust free room and saves electric power and causes quite Big hindering factor.
It should be noted that in the device of comparative example, become negative pressure, therefore owing to returning the pressure of air flue 114 There is the probability that the moisture from outdoor air is infiltrated.Although to this end, to conduit (wind-tunnel) requirement high-air-tightness to be had, but But probably make the humidity of air increase because air-tightness reduces, the most often have the situation of unstable properties to occur.
(embodiment)
In the present embodiment shown in Fig. 6, by arrange in the second level refrigerant loop adsorption heat exchanger 22, 24, it is possible to cool down while by air dewetting, cold from without before the dry type rotor 31 being arranged on the third level But coil.
Specifically, the air of A point cools down heat exchanger 61 by outdoor air, thus temperature and humidity reduces, and changes State is B point.The air of B point passes through adsorption heat exchanger 22,24, thus temperature and humidity reduces further, changes into C point. This air with then and then pass through to adsorb returning that the air of the E point of flowing in air flue 58 mix and humidity declines (D point), Rotor 31, thus it is supplied to indoor after becoming low dew point (about-50 DEG C) air of the F point being substantially free of steam.
As Fig. 5 has shown that, by inhaling using the adsorption heat exchanger 22,24 as the Dehumidifying element of the second level Attached dehumidifying, it is possible to obtain the air of low dew point, can also reduce dry-bulb temperature such that it is able to carry out the dehumidifying rotor of Fig. 7 simultaneously 102 are difficult to the preferable dehumidifying reached.As long as it is to say, first temperature and humidity is reduced at adsorption heat exchanger 22,24, by Low in the temperature of air, the heat of adsorption therefore produced at the adsorber rotor 31 of the third level tails off and temperature can be suppressed to rise, And relative to being difficult to increase the adsorption heat exchanger 22,24 of adsorption area because of the problem on manufacturing, due to adsorber rotor 31 Can ratio adsorption heat exchanger 22,24 obtain more adsorption area, therefore moisture removal also becomes big, it is possible to obtain low humidity and low The air of temperature.
And, in a comparative example, the regeneration temperature being used for obtaining low dew point air (dew point-50 DEG C) needs about 140 DEG C High temperature, but in the system of present embodiment, by with the air (G of 60 DEG C after heating at regenerative heat exchanger 65 Point) use as regeneration air, it is possible to obtain same low dew point air, make adsorber rotor 31 required when regenerating it is thus possible to reduce The energy wanted.Mixed with the air of branch path 55 by the air of H point after adsorber rotor 31 and change into I point, then use Regeneration in adsorption heat exchanger 22,24.
The reduction of the regeneration temperature of adsorber rotor 31, it is possible to by using with the adsorption heat exchanger being arranged on the second level 22, the low dew point air (-15 DEG C to-20 DEG C) after 24 dehumidifying is reached.Stated differently, since supply low dew toward adsorber rotor 31 The air of point, the most as described above, even if adsorber rotor 31 is adsorbed with more moisture and makes air become low humidity, the most several Heat of adsorption will not be produced, therefore, it is possible to reduce regeneration temperature.
Additionally, regeneration temperature is 60 DEG C, its temperature compared with comparative example is relatively low, and the thermal source as regeneration adds with heat pump The such mode of heat was difficult in the past, but its realization is also possibly realized.
It should be noted that in the present embodiment, due to by carrying out the return air flue 58 of self-desiccation dust free room On return air fan 59 is set to make overall malleation in system, the probability that moisture is mixed in air reduces, system steady Qualitative also obtain raising.
(other control action of refrigeration unit)
In the refrigeration unit 70 shown in Fig. 3, according to the operating condition of dehumidification system, it is appropriately performed following control and moves Make.
When dehumidification system operates, controller 110 is cold according to the detection temperature computation of each temperature sensor 101～104 Required ability Qc of condenser side (i.e. regenerative heat exchanger 65 and reheating heat exchanger 64 side) and vaporizer side (i.e. outdoor air Cooling heat exchanger 61 and return to air heat exchanger 67 side) required ability Qe.
When required ability Qc of condenser side is more than required ability Qe of vaporizer side, the rotating speed of compressor 80 is conditioned For making the condensing pressure recorded with high-pressure pressure sensor 95 arrive the target condensing pressure determined according to required ability Qc.By This, it is possible to make condensing pressure promptly arrive target condensing pressure, so that it is guaranteed that required ability Qc.
On the other hand, when controlling compressor 80 so that condensing pressure arrives desired value, it is possible to evaporating pressure can height Go out target evaporating pressure, thus required ability Qe of vaporizer side is not enough.Then, in this case, the 3rd expansion valve is made 84 is open with regulation aperture.When the 3rd expansion valve 84 is opened, the cold-producing medium of compressor 80 discharge side is at the first drain passageway 71 With flowing in both the second drain passageways 72, cold-producing medium also adjusts at condensing pressure and is condensed at heat exchanger 83.Then, for Condensing pressure maintains target condensing pressure, and the rotating speed of compressor 80 increases.As a result of which it is, evaporating pressure can be made to reduce And close to target evaporating pressure.
When required ability Qe of vaporizer side is more than required ability Qc of condenser side, the rotating speed of compressor 80 is conditioned For making the evaporating pressure recorded with low-pressure sensor 96 arrive the target evaporating pressure determined according to required ability Qe.By This, it is possible to make evaporating pressure promptly arrive target evaporating pressure, so that it is guaranteed that required ability Qe.
On the other hand, when controlling compressor 80 so that evaporating pressure arrives desired value, it is possible to condensing pressure can be low In target condensing pressure, thus required ability Qc of condenser side is not enough.Then, in this case, the 4th expansion valve is made 87 is open with the aperture of regulation.When the 4th expansion valve 87 is opened, the cold-producing medium of compressor 80 suction side is in the first suction passage 73 and second both suction passage 74 in flowing, cold-producing medium also adjusts at evaporating pressure and evaporates at heat exchanger 88.Then, for Making the evaporating pressure maintain target evaporating pressure, the rotating speed of compressor 80 increases.As a result of which it is, condensing pressure can be made to rise And close to target condensing pressure.
Additionally, in refrigeration unit 70, as the outdoor air OA recorded with outside air temperature sensor (omitting diagram) Temperature less than target evaporating pressure time, switch valve 92 is open.Will system thereby, it is possible to walk around outdoor air cooling heat exchanger 61 Cryogen is sent to return air heat exchanger 67.
-effect of embodiment-
According to present embodiment, owing to regeneration temperature can be made to be greatly reduced 60 DEG C from 140 DEG C as described above Reduce reactivation heat, therefore, it is possible to seek significantly energy-saving.Calculating with above-mentioned condition, electric power consumption reduces big About 35%, the operating cost of system is greatly reduced.Additionally, due to using regenerative heat exchanger 65 as refrigerant loop 70a Heat exchanger, therefore, it is possible to improve energy-saving effect further.
Additionally, in the present embodiment, owing to the regeneration temperature of adsorber rotor 31 can be made to be 60 DEG C, therefore, it is possible to will be from The Btu utilization manufacturing equipment exhausting of lithium ion battery is in regenerating or by the Btu utilization of refrigerant loop 70a discharge in again Raw such that it is able to further to seek energy-saving.Being more than the manufacture equipment of lithium ion battery, the production line at other workshop is also The heat of discharge can be utilized the most like this.
Additionally, in refrigeration unit 70, regenerative heat exchanger 65, outdoor air cooling heat exchanger 61, reheating heat are handed over Parallel operation 64 and return air heat exchanger 67 are connected to same refrigerant loop 70a.Thereby, it is possible to will cool down at outdoor air Heat exchanger 61, the diarrhea of heat type of the air returning air heat exchanger 67 recovery are used at regenerative heat exchanger 65, reheat hot friendship At parallel operation 64, air is heated.As a result of which it is, the energy saving of dehumidification system can be promoted.
(variation of the embodiment of invention)
The dehumidification system that the structure that dehumidification system 10 is refrigeration unit 70 of the first variation is different from the embodiment described above. As shown in Figure 8, the refrigeration unit 70 of the first variation is provided with the circulating refrigerant loop of binary refrigeration 120.It is to say, Refrigerant loop 120 is configured to: loop, high-pressure side 120a and low-pressure side loop 120b is via the cascade constituting intermediate heat exchanger Heat exchanger 140 is connected with each other.
Be connected with the high side compressors 130 as the first compressor on the 120a of loop, high-pressure side in turn, regenerated heat is handed over Parallel operation 65, high-pressure side expansion valve 131 and return air heat exchanger 67.Connect in the downstream returning air heat exchanger 67 and have The first flow path 141 of cascade heat exchanger 140.Loop, high-pressure side 120a connects have to walk around and return air heat exchanger 67 High pressure side pipe 121.High pressure side pipe 121 is provided with electromagnetic type high side switch valve 132.At loop, high-pressure side 120a On, the discharge side in high side compressors 130 is provided with high-pressure pressure sensor 133, sets in the suction side of high side compressors 130 There is low-pressure sensor 134.
Low-pressure side loop 120b is provided with the low-pressure side compressor 150 as the second compressor.Low-pressure side compressor 150 Discharge side branch into the first drain passageway 122 and the second drain passageway 123.First drain passageway 122 is connected with in turn Regenerative heat exchanger 64, the second flow path 142 of cascade heat exchanger 140.Second drain passageway 123 is connected with condensation in turn Pressure adjusts heat exchanger the 83, the 3rd expansion valve 84.
The suction side of low-pressure side compressor 150 branches into the first suction passage 124 and the second suction passage 125.First Outdoor air cooling heat exchanger 61 and check-valves 86 it is connected with in turn in suction passage 124.Further, in the first suction passage On 124, connect in the same manner as embodiment and have shunt valve 77.Second suction passage 125 is connected with the 4th expansion valve in turn 87 and evaporating pressure adjust heat exchanger 88.
On the 120b of low-pressure side loop, and in outflow end and each suction passage 124,125 of each drain passageway 122,123 Flow into connect between end and have low-pressure side expansion valve 151.On the 120b of low-pressure side loop, in the discharge side of low-pressure side compressor 150 It is provided with high-pressure pressure sensor 153, is provided with low-pressure sensor 154 in the suction side of low-pressure side compressor 150.
In the refrigeration unit 70 of the first variation, carry out two-stage system SAPMAC method.After being compressed by high side compressors 130 After cold-producing medium condenses toward heat radiation in air at regenerative heat exchanger 65, reduce pressure at high-pressure side expansion valve 131.Post-decompression After cold-producing medium absorbs heat from air at return air heat exchanger 67 and evaporates, in the first flow path of cascade heat exchanger 140 Flow in 141.In cascade heat exchanger 140, in first flow path 141, the cold-producing medium of flowing flows from second flow path 142 Dynamic cold-producing medium absorbs heat and evaporates.In cold-producing medium after evaporation is inhaled into high side compressors 130 and compressed.
Cold-producing medium after being compressed by low-pressure side compressor 150 is cold toward heat radiation in air at reheating heat exchanger 64 Solidifying, flow in the second flow path 142 of cascade heat exchanger 140.In cascade heat exchanger 140, flow in second flow path 142 Dynamic cold-producing medium condenses toward the cold-producing medium heat radiation of flowing in first flow path 141.Condensed cold-producing medium expands in low-pressure side At valve 151 after decompression, flow in outdoor air cooling heat exchanger 61.At outdoor air cooling heat exchanger 61, refrigeration Agent is absorbed heat from air and is evaporated.In cold-producing medium after evaporation is inhaled into low-pressure side compressor 150 and compressed.
As it has been described above, in the refrigeration unit 70 of the first variation, cold-producing medium circulates in the 120a of loop, high-pressure side and enters Row kind of refrigeration cycle, and cold-producing medium circulates in the 120b of low-pressure side loop and carries out kind of refrigeration cycle.Thereby, it is possible to guarantee fully Pressure reduction between the evaporating pressure of the condensing pressure of regenerative heat exchanger 65 side and outdoor air cooling heat exchanger 61 side, and then Can fully obtain heating efficiency and the cooling capacity of outdoor air cooling heat exchanger 61 of regenerative heat exchanger 65.
Structure other than the above, effect and effect are identical with above-mentioned embodiment.
Fig. 9 illustrates the second variation.As shown in Figure 5, it is also possible in first suction passage 124 of low-pressure side loop 120b On outdoor air cooling heat exchanger 61 downstream at connect return air heat exchanger 67.
Figure 10 illustrates the 3rd variation.In the second Dehumidifying element 20 of above-mentioned embodiment, at the second Dehumidifying element 20 Middle setting changes toward the air flue switching mechanism 26,27 of the flow direction of leaked-in air in two adsorption heat exchangers 22,24, and And refrigerant flow path switching mechanism 25 is set in refrigerant loop 20a, by the flow direction and the flow direction of cold-producing medium of switching air, The adsorption heat exchanger becoming vaporizer is connected to supply path 40 and become the adsorption heat exchanger of condenser even It is connected to exhaust channel 50.But, as shown in Figure 10 (A), (B), it is also possible to be configured to not use air flue switching mechanism (wind Valve) 26,27.
The dehumidifying side refrigerant loop 20a of this second Dehumidifying element 20 with above-mentioned embodiment likewise by being connected compression Machine the 21, first adsorption heat exchanger 22, expansion valve the 23, second adsorption heat exchanger 24 and four-way change-over valve 25 and constitute.Another Aspect, in this refrigerant loop 20a, the pipeline 28 of the doublet in Figure 10 is made up of the flexible pipe that can stretch, bend.This Outward, be provided with the mechanism of the position changing the first adsorption heat exchanger 22 and the second adsorption heat exchanger 24, but not shown out.
In the structure shown here, when the state of Figure 10 (A), become the first adsorption heat exchanger 22 of condenser and be positioned at aerofluxus and lead to Side, road 50, the second adsorption heat exchanger 24 becoming vaporizer is positioned at supply path 40 side.In the state of Figure 10 (B), become First adsorption heat exchanger 22 of vaporizer is positioned at supply path 40 side, and the second adsorption heat exchanger becoming condenser is positioned at row Gas path 50 side.
Like this, Figure 10 (A), (B) example in, even if not switching the supply path 40 of air flue 50 and aerofluxus is led to Road 50, it is also possible to often come being supplied to room by the position of mobile first adsorption heat exchanger 22 and the second adsorption heat exchanger 24 Interior air dehumidifies.Further, as having with embodiment due to the first Dehumidifying element 60 and the 3rd Dehumidifying element 30 Structure, therefore, it is possible to produce the effect as embodiment.
(other embodiment)
Above-mentioned embodiment can also be made to have following structure.
Such as, in the above-described embodiment, although using the regenerative heat exchanger 65 of refrigerant loop as air heater Use but it also may use electric heater or steam heater as air heater.
Additionally, in the above-described embodiment, it is also possible to arrange between the second Dehumidifying element 20 and the 3rd Dehumidifying element 30 Intercooler cools down air.
Additionally, in the above-described embodiment, it is provided with the return air flue 58 that room air RA is sent back to supply path 40, But return air flue 58 can also be set.
Such as, in the above-described embodiment, the one of the room air of supply path 40 will be returned from return air flue 58 Part uses the regeneration air as adsorber rotor 31 but it also may does not use such structure, but changes and make air stream To structure, such as will outdoor air a part dehumidifying after be supplied to interior space S while, by the other parts of outdoor air Regeneration for adsorber rotor 31.
Additionally, the Dehumidifying element of the present invention is preferably configured as relative to possessing the first Dehumidifying element 60 and the 3rd Dehumidifying element Both the system set of 30, it is possible to the second Dehumidifying element 20 is connected to above-mentioned first Dehumidifying element 60 and the 3rd Dehumidifying element 30 it Between optional mount type system.By in such manner, it is possible to second Dehumidifying element 20 with adsorption heat exchanger 22,24 is arranged on In the diarcs system being only made up of outdoor air cooling heat exchanger 61 and dehumidifying rotor 31 in the past used, thus both realize If the energy-saving of system.
It should be noted that above embodiment is only preferred exemplary substantially, be not intended to the present invention, its The scope of application or its purposes is any limitation as.
-industrial applicability-
As described above, the present invention is very useful for the dehumidification system that the air after dehumidifying is supplied to indoor.
-symbol description-
10 dehumidification systems
20 second Dehumidifying elements
22 first adsorption heat exchangers
24 second adsorption heat exchangers
25 refrigerant flow path switching mechanisms (four-way change-over valve)
26 first flow path switching parts (air flue switching mechanism)
27 first flow path switching parts (air flue switching mechanism)
30 the 3rd Dehumidifying elements
31 adsorber rotors
40 supply path (air flue)
50 exhaust channels (air flue)
58 return air flue
58a returns air scoop
59 return air fan
60 first Dehumidifying elements
61 outdoor air cooling heat exchangers
65 regenerative heat exchangers (air heater)
67 return air-cooled heat exchanger (return air cooler)
70a refrigerant loop
120 refrigerant loops
The S interior space

Claims (17)

1. a dehumidification system, it possesses: air flue, and this air flue has and is supplied to the supply that the air of the interior space passes through The exhaust channel that path and the air being discharged into outdoor pass through；And Dehumidifying element, this Dehumidifying element is arranged on this air flue,
Above-mentioned Dehumidifying element from the first Dehumidifying element configured successively toward the interior space from the entrance side of the air being supplied to indoor, Second Dehumidifying element and the 3rd Dehumidifying element are constituted,
Above-mentioned 3rd Dehumidifying element is configured to: possesses a part and is configured to adsorption section and other parts are configured to the absorption of reproducing unit Rotor, and at adsorption section, the air after dehumidifying at the second Dehumidifying element is dehumidified further,
This dehumidification system is characterised by:
Above-mentioned first Dehumidifying element possesses the outdoor air cooling heat exchanger of the cooling-dehumidifying air by being supplied to indoor,
Above-mentioned second Dehumidifying element is configured to: possess two the heat of adsorption exchanges that can alternatively switch to absorption side with regeneration side Device, and at the adsorption heat exchanger of absorption side, the air after dehumidifying at the first Dehumidifying element is dehumidified further.
Dehumidification system the most according to claim 1, it is characterised in that:
In addition to adsorber rotor, above-mentioned 3rd Dehumidifying element is also equipped with being arranged in the entering of regeneration air being supplied to this adsorber rotor The air heater of mouth side.
Dehumidification system the most according to claim 2, it is characterised in that:
Above-mentioned air heater is the regenerated heat exchange being made up of the condenser being located on the refrigerant loop carrying out kind of refrigeration cycle Device.
Dehumidification system the most according to claim 3, it is characterised in that:
Above-mentioned refrigerant loop is as condenser and with outdoor air cooling heat exchanger work using above-mentioned regenerative heat exchanger Refrigerant loop for vaporizer.
Dehumidification system the most according to claim 2, it is characterised in that:
Above-mentioned air heater is electric heater or steam heater.
Dehumidification system the most according to claim 1, it is characterised in that:
Above-mentioned second Dehumidifying element and above-mentioned 3rd Dehumidifying element are configured to: relative to becoming the adsorption heat exchanger adsorbing side, The adsorption site of above-mentioned adsorber rotor is in the downstream of above-mentioned supply path, and the adsorption heat exchanger becoming regeneration side is positioned at Downstream by the above-mentioned exhaust channel of the reproducing unit of this adsorber rotor.
Dehumidification system the most according to claim 6, it is characterised in that:
Two adsorption heat exchangers of above-mentioned second Dehumidifying element are made up of two heat exchangers being located on refrigerant loop,
Above-mentioned second Dehumidifying element has: refrigerant flow path switching mechanism, and it makes the stream of the cold-producing medium in above-mentioned refrigerant loop To reversion, and make above-mentioned two adsorption heat exchanger alternatively switch to and become the vaporizer of absorption side and become the cold of regeneration side Condenser；With air flue switching mechanism, the flow direction of its switching air, the adsorption heat exchanger becoming vaporizer is connected to above-mentioned Supply path, and the adsorption heat exchanger becoming condenser be connected to above-mentioned exhaust channel,
The adsorber rotor of above-mentioned 3rd Dehumidifying element is configured to: across being arranged on above-mentioned supply path and exhaust channel, and Can pivot about with the rotary shaft between two paths, the part that above-mentioned supply path passes through becomes above-mentioned adsorption section, on State the part that exhaust channel passes through and become above-mentioned reproducing unit.
Dehumidification system the most according to claim 1, it is characterised in that:
Second Dehumidifying element and the 3rd Dehumidifying element be with between this second Dehumidifying element and the 3rd Dehumidifying element not via The mode of intercooler is directly connected together by supplying path.
Dehumidification system the most according to claim 1, it is characterised in that:
This dehumidification system possesses return air flue, and this return air flue makes the return air scoop connected with the above-mentioned interior space It is connected to the supply path between above-mentioned second Dehumidifying element and the 3rd Dehumidifying element.
Dehumidification system the most according to claim 9, it is characterised in that:
Being provided with return air fan on above-mentioned return air flue, room air is pushed away toward supply logical by this return air fan Road.
11. dehumidification systems according to claim 9, it is characterised in that:
Being provided with return air cooler on above-mentioned return air flue, this return air cooler will be at this return air flue The air cooling of middle flowing.
12. dehumidification systems according to claim 1, it is characterised in that:
Being located at the adsorbent on above-mentioned adsorption heat exchanger is: have when the relative humidity of air is the highest, this relative humidity every The adsorbent of the adsorption isotherm that the adsorbance of unit increments is the biggest,
The adsorbent being located at above-mentioned adsorber rotor is: have when the relative humidity of air is the lowest, and the per unit of this relative humidity increases The adsorbent of the adsorption isotherm that the adsorbance of dosage is the biggest.
13. dehumidification systems according to claim 1, it is characterised in that:
This dehumidification system is configured to: relative to possessing above-mentioned first Dehumidifying element and the system that both sets of above-mentioned 3rd Dehumidifying element, Above-mentioned second Dehumidifying element is connected between above-mentioned first Dehumidifying element and the 3rd Dehumidifying element.
14. dehumidification systems according to claim 4, it is characterised in that:
Above-mentioned refrigerant loop connects and has: reheating heat exchanger, it is arranged in the above-mentioned absorption on above-mentioned supply path The downstream of rotor, and constitute condenser；With the return air heat exchanger as air cooling end, this return air heat is handed over Parallel operation is arranged in the return air scoop making to connect with the above-mentioned interior space and is connected to above-mentioned second Dehumidifying element and removes with the above-mentioned 3rd On the return air flue of the supply path between wet unit, and constitute vaporizer.
15. dehumidification systems according to claim 14, it is characterised in that:
Above-mentioned refrigerant loop is the unitary kind of refrigeration cycle formula refrigeration that above-mentioned condenser and vaporizer are connected to a loop Agent loop.
16. dehumidification systems according to claim 15, it is characterised in that:
Above-mentioned refrigerant loop connects and has variable displacement compressor, when the required ability of above-mentioned condenser side is higher than above-mentioned During the required ability of vaporizer side, the rotating speed of this compressor be controlled such that condensing pressure close to goal pressure, when above-mentioned steaming When sending out the required ability of device side higher than the required ability of above-mentioned condenser side, the rotating speed of this compressor is controlled such that vapor pres-sure Power is close to goal pressure.
17. dehumidification systems according to claim 14, it is characterised in that:
Above-mentioned refrigerant loop is the circulating refrigerant loop of binary refrigeration, and the circulating refrigerant loop of this binary refrigeration has: Loop, high-pressure side, its connection has the first compressor and above-mentioned regenerative heat exchanger, and carries out kind of refrigeration cycle；Low-pressure side loop, It connects the second compressor and above-mentioned outdoor air cooling heat exchanger, and carries out kind of refrigeration cycle；And intermediate heat exchanger, It makes to carry out heat exchange between the low pressure refrigerant in loop, above-mentioned high-pressure side and the high-pressure refrigerant in above-mentioned low-pressure side loop.
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US20140202190A1 (en) 2014-07-24

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